// Copyright 2014 George Papandreou

#ifndef CAFFE_COMMON_CUH_
#define CAFFE_COMMON_CUH_

#include <cuda.h>
   #if !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >=600
   #else
   static __inline__ __device__ double atomicAdd(double *address, double val) {
       unsigned long long int* address_as_ull = (unsigned long long int*)address;
       unsigned long long int old = *address_as_ull, assumed;
       if (val==0.0)
         return __longlong_as_double(old);
       do {
           assumed = old;
           old = atomicCAS(address_as_ull, assumed, __double_as_longlong(val +__longlong_as_double(assumed)));
       } while (assumed != old);
       return __longlong_as_double(old);
   }
   #endif

#endif
